|Publication number||US6996784 B2|
|Application number||US 10/143,999|
|Publication date||Feb 7, 2006|
|Filing date||May 10, 2002|
|Priority date||Jan 29, 1997|
|Also published as||US5900875, US6448988, US6943813, US7469387, US7487470, US20030001909, US20030046528, US20060010405, US20090178002|
|Publication number||10143999, 143999, US 6996784 B2, US 6996784B2, US-B2-6996784, US6996784 B2, US6996784B2|
|Inventors||Robert Yuji Haitani, Jeffrey C. Hawkins|
|Original Assignee||Palmsource, Inc.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (40), Non-Patent Citations (14), Referenced by (13), Classifications (15), Legal Events (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The present application is a continuation of U.S. patent application Ser. No. 09/272,979, entitled “Method and Apparatus for Interacting with a Portable Computer System”, filed on Mar. 19, 1999 now U.S. Pat. No. 6,448,988, which is a continuation of U.S. patent application Ser. No. 08/790,518 entitled “Method and Apparatus for Interacting with a Portable Computer System”, filed on Jan. 29, 1997 now U.S. Pat. No. 5,900,875, the aforementioned priority applications being hereby incorporated by reference.
The present invention relates to the field of portable computer systems. Specifically, the present invention discloses a portable computer system that can quickly be turned on and access relevant information with a minimal user interaction.
Many busy business professionals require a lot of information while they are traveling. To fill this need, a market for palmtop computer systems has emerged. Palmtop computer systems are small compact computers that can fit in the palm of your hand. Palmtop computer systems are usually used to perform personal informational management tasks such as, an address book, a daily organizer and a to do list.
Users of palmtop computer systems need to be able to access the information stored into the palmtop computer as fast as possible. For example, a person talking on a phone may schedule an appointment with the person on the other end of the phone. Thus, the person would need to access the information in his calendar program on the palmtop computer system as fast as possible such that no interruption of the telephone conversation would be required.
Existing palmtop computer systems often require a number of steps to obtain the desired information. For example, to obtain information from a calendar date, a person may first need to turn on the palmtop computer system. Some systems then require a “boot-up” time before the palmtop computer system enters an operational state. After the palmtop is on and ready, the person must then start the calendar application. Finally, the person must navigate the calendar application to locate the desired date. Although, those few steps may seem simple, such steps seem to be an unnecessary nuisance to a person that wants to quickly access the appropriate information. It would therefore be desirable to implement a palmtop computer system that allows the user to very quickly access the required information.
It is therefore an object of the present invention to implement a palmtop computer system that allows a user to quickly turn on the palmtop computer system and access the needed information. It is a further object of the present invention to allow the user to executed specific programs on the palmtop computer system using external devices coupled to the palmtop computer system.
These and other objectives are accomplished by the palmtop computer system of the present invention which incorporates mechanical buttons that combine the task of turning the palmtop computer system on and starting a particular application program. Furthermore, the same mechanical button can be used to navigate the application program to find the information that is most likely needed by the user. Additionally, external devices can be coupled to the palmtop computer system in a manner that allows the external hardware device to initiate specific application programs that cooperate with the external hardware device.
The objects, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiment of the invention with references to the following drawings.
Methods and apparatus for implementing a palmtop computer system that is well integrated with a personal computer system is disclosed. In the following description, for purposes of explanation, specific nomenclature is set forth to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that these specific details are not required to practice the present invention. In other instances, well-known circuits and devices are shown in block diagram form to avoid obscuring the present invention.
Below the display area 181 is a user input area 183. The user input area 183 is used to input text in the GraffitiŽ writing area 145 and interact with the application buttons 141 through 144. The user input area 183 is covered by the digitizer pad that will sense the users finger or stylus.
Below the user input area 183 is a mechanical button input area 185. In the embodiment of
The first mechanical button is a power button 129. If the portable computer system 100 is off, then the power button 129 turns on the portable computer system 100 and brings the portable computer system 100 to the state that the portable computer system 100 was in just before it powered down. Conversely, if the portable computer system is on then pressing the power button 129 will save the current state of the portable computer system 100 and turn the portable computer system 100 off.
A pair of scrolling buttons 131 are used to scroll information in the display area 181 up and down. The scrolling buttons 141 allow a user to view a list of information that does not fit on the display.
There are four mechanical application buttons 121, 123, 125, and 127 illustrated in
When the portable computer system 100 is powered-off, the application function buttons 121, 123, 125 and 127 turn on the portable computer system and then begin executing the associated application. For example, if the user presses the addressbook application button 123, the portable computer system will turn on and begin executing the address book application.
In the present embodiment, the application buttons operate by generating a hardware interrupt signal to the processor in the portable computer system 100. The hardware interrupt signal wakes the processor in the portable computer system 100 from a sleep mode and caused the processor to execute code in a wake-up routine. In the wake-up routine, the processor checks a register to determine which application button was pressed. After determining which application button was pressed.
To further convenience the user, each application starts executing by entering a state that has been chosen to best provide the information the user may be seeking. The following table lists the current applications illustrated in
Application Description of Initial state. Calendar Appointment list for the current day. Addressbook List of names and phone numbers for most recently accessed multi-function category. To-Do To-Do list of most recently accessed multi-function category. Memo Pad Current Memo being edited (if any) else current list of memos.
Thus, each application button turns on the portable computer system 100, starts executing the corresponding application, and brings the corresponding application into an initial state that has been chose to provide the most useful information. In some applications, the initial state can be set by the user such that the user can decide what state the application should enter when the corresponding application button has been pressed.
As stated in the previous section, when the addressbook application button 123 is pressed, the portable computer system is turned on and the addressbook application starts executing.
Referring to the upper right corner of the addressbook screen display in
Next to the multifunction category name 263 is a multifunction category edit indicator 261. The multifunction category edit indicator 261 indicates that the user can select a particular multifunction category to display by selecting the multifunction category edit indicator 261. For example,
An easier method of switching between the different multifunction categories exists. Specifically, the user can select between the various multifunction categories in the addressbook by continuing to press the addressbook application button after the addressbook application is executing. For example, referring to the addressbook display of
Different applications can perform different actions when their respective application button is pressed when the application is already running. Thus, each application button is “overloaded” in that the function that the key performs depends on the current context. The following table describes how each application behaves when the associated application button is pressed when the application is already running:
Effect of pressing the Application button when the
application is already running.
Scroll through appointment list for the current day.
(Scroll keys move to different days.)
Rotate through the different multifunction categories.
Rotate through the different multifunction categories.
Rotate through the different multifunction categories.
In summary, each application button turns on the portable computer system 100 and begins executing the associated application if the portable computer system is off. If a different application is running when an application button is pressed, the application associated with the pressed application button begins executing. However, if the application is already up and running and the application button for that application is pressed then the application can perform a specific function such as rotating through different multifunction categories as described in the example of
Referring again to
To synchronize the information on the portable computer system 330 with the information on the personal computer system 310, a user drops the portable computer system 330 into the communication cradle 320 and presses a synchronization button 325 on the communication cradle 320. The synchronization button 325 causes a synchronization program on the portable computer system 330 to execute. The synchronization program on the portable computer system 330 wakes up a peer synchronization program on the personal computer system 310. The synchronization program on the portable computer system 330 and the peer synchronization program on the personal computer system 310 perform the necessary operations to synchronize information stored on the two computer systems. The architecture of the synchronization process is described in the U.S. patent application entitled “Extendible Method and Apparatus for Synchronizing Multiple Files On Two Different Computer Systems” with Ser. No. 08/542,055, filed on Oct. 13, 1995.
The synchronization button 325 on the communication cradle 320 operates similar to the application buttons on the personal computer system 310. Specifically, the synchronization button 325 on the communication cradle 320 asserts a hardware interrupt signal to the processor in the personal computer system 310. The interrupt routine determines that the synchronization button 325 was pressed and thus starts executing the synchronization program on the portable computer system 330. Thus, the synchronization button 325 uses an externally accessible version of the application buttons.
Data Terminal Ready (DTR) [output]
Power output [output]
Serial Data Input (RXD) [input]
Ready To Send (RTS) [output]
Serial Data Output (TXD) [output]
Clear To Send (CTS) [input]
Hardware Interrupt Line [input]
General purpose data input [input]
To assert a hardware interrupt signal to the processor in the portable computer system 400, the synchronization button 325 on the communication cradle only needs to complete an electrical circuit between the power output connector 452 and the hardware interrupt line 457. The hardware interrupt line 457 is different from the hardware interrupt line used by the application buttons.
The hardware interrupt line 457 can be used to perform other operations as well.
To handle the remote synchronization, the remote synchronization button 520 can be wired to assert both the hardware interrupt line 457 and the General purpose data input 458. In such an embodiment, the interrupt service routine that handles a hardware interrupt associated with the hardware interrupt line 457 would first check the General purpose data input 458. If the General purpose data input 458 is not asserted, then a standard synchronization through the communication cradle 320 would be performed. However, if the General purpose data input 458 is asserted, then a special synchronization routine for handling remote synchronizations would be performed.
Although the present invention has been described in terms of specific exemplary embodiments, it will be appreciated that various modifications and alterations might be made by those skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.
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|U.S. Classification||715/864, 715/840, 713/320|
|International Classification||G06F1/26, G06F3/048, G06F1/16, G06F3/033, G06F3/00|
|Cooperative Classification||G06F3/023, G06F1/1626, G06F1/1632|
|European Classification||G06F3/023, G06F3/0488, G06F1/16P6, G06F1/16P3|
|Feb 19, 2003||AS||Assignment|
Owner name: PALMSOURCE, INC., CALIFORNIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PALM, INC.;REEL/FRAME:013735/0444
Effective date: 20030203
|Jul 2, 2009||FPAY||Fee payment|
Year of fee payment: 4
|Mar 14, 2013||FPAY||Fee payment|
Year of fee payment: 8